Proshad, Ram
Zhang, Dan
Uddin, Minhaz
Wu, Yi
Funding for this research was provided by:
Sichuan Branch, Tobacco General Company of China (Grant No. SCYC201504)
Article History
Received: 29 November 2019
Accepted: 19 February 2020
First Online: 17 March 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.